* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-blue: #1e3a8a;
    --secondary-blue: #3b82f6;
    --accent-blue: #60a5fa;
    --success-green: #059669;
    --content-bg: #f8fafc;
    --white: #ffffff;
    --text-dark: #1e293b;
    --text-light: #64748b;
    --text-white: #f1f5f9;
    --border-light: #e2e8f0;
    --shadow: rgba(15, 23, 42, 0.08);
    --gradient: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
    --hero-gradient: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 50%, #60a5fa 100%);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--white);
    color: var(--text-dark);
    line-height: 1.6;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 100;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-light);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text-dark);
}

.nav-logo-icon {
    width: 2.5rem;
    height: 2.5rem;
    background: var(--gradient);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.25rem;
}

.nav-logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
}

.nav-cta {
    background: var(--gradient);
    color: var(--white);
    padding: 0.75rem 2rem;
    border-radius: 2rem;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(30, 58, 138, 0.3);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(30, 58, 138, 0.4);
}

/* Hero Section */
.hero {
    background: var(--hero-gradient);
    color: var(--white);
    padding: 8rem 0 6rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.hero .subtitle {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    opacity: 0.9;
    font-weight: 300;
}

.hero .description {
    font-size: 1.25rem;
    margin-bottom: 3rem;
    opacity: 0.8;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--white);
    color: var(--primary-blue);
    padding: 1.25rem 3rem;
    border-radius: 3rem;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.25rem;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.hero-cta:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* Problem Section */
.problem {
    padding: 6rem 0;
    background: var(--content-bg);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.section-header p {
    font-size: 1.25rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.problem-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 1rem;
    box-shadow: 0 4px 15px var(--shadow);
    text-align: center;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.problem-card:hover {
    border-color: #dc2626;
    transform: translateY(-4px);
}

.problem-icon {
    width: 4rem;
    height: 4rem;
    background: linear-gradient(135deg, #dc2626, #ef4444);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: var(--white);
    font-size: 1.5rem;
}

.fake-examples {
    background: var(--white);
    border-radius: 1rem;
    padding: 3rem;
    box-shadow: 0 8px 30px var(--shadow);
    text-align: center;
}

.fake-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.fake-example {
    position: relative;
    aspect-ratio: 1;
    background: linear-gradient(135deg, #fee2e2, #fecaca);
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #dc2626;
    font-size: 2rem;
    border: 2px dashed #dc2626;
}

.fake-badge {
    position: absolute;
    top: -0.5rem;
    right: -0.5rem;
    background: #dc2626;
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 600;
}

/* Solution Section */
.solution {
    padding: 6rem 0;
    background: var(--white);
}

.solution-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-bottom: 4rem;
}

.solution-text h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.solution-text p {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.solution-features {
    list-style: none;
}

.solution-features li {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

.solution-features i {
    color: var(--success-green);
    font-size: 1.25rem;
}

.solution-visual {
    position: relative;
}

.app-mockup {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
    background: var(--white);
    border-radius: 2rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    border: 8px solid #1f2937;
}

.mockup-header {
    background: var(--gradient);
    color: var(--white);
    padding: 1rem;
    text-align: center;
    font-weight: 600;
}

.mockup-content {
    padding: 2rem;
    background: var(--content-bg);
}

.mockup-card {
    background: var(--white);
    border-radius: 0.75rem;
    padding: 1.5rem;
    margin-bottom: 1rem;
    box-shadow: 0 2px 8px var(--shadow);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.mockup-icon {
    width: 3rem;
    height: 3rem;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
}

.verified-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--success-green);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(5, 150, 105, 0.3);
}

/* Use Cases Section */
.use-cases {
    padding: 6rem 0;
    background: var(--content-bg);
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.use-case {
    background: var(--white);
    border-radius: 1rem;
    padding: 2.5rem;
    box-shadow: 0 4px 15px var(--shadow);
    transition: all 0.3s ease;
}

.use-case:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 35px rgba(30, 58, 138, 0.15);
}

.use-case-icon {
    width: 4rem;
    height: 4rem;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--white);
    font-size: 1.5rem;
}

.use-case h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.use-case p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.use-case-example {
    background: var(--content-bg);
    border-radius: 0.5rem;
    padding: 1rem;
    font-style: italic;
    color: var(--text-light);
    border-left: 4px solid var(--secondary-blue);
}

/* Screenshots Section */
.screenshots {
    padding: 6rem 0;
    background: var(--white);
}

.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.screenshot {
    position: relative;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 10px 30px var(--shadow);
    transition: all 0.3s ease;
}

.screenshot:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(30, 58, 138, 0.2);
}

.screenshot img {
    width: 100%;
    height: auto;
    display: block;
}

.screenshot-overlay {
    position: absolute;
    inset: 0;
    background: var(--gradient);
    opacity: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.25rem;
    font-weight: 600;
    transition: opacity 0.3s ease;
}

.screenshot:hover .screenshot-overlay {
    opacity: 0.9;
}

/* Placeholder for screenshots */
.screenshot-placeholder {
    aspect-ratio: 16/10;
    background: linear-gradient(135deg, var(--content-bg), #e2e8f0);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    font-size: 1.125rem;
    position: relative;
}

.screenshot-placeholder::before {
    content: '';
    position: absolute;
    inset: 1rem;
    border: 2px dashed var(--border-light);
    border-radius: 0.5rem;
}

/* Trust Section */
.trust {
    padding: 6rem 0;
    background: linear-gradient(135deg, #ecfdf5, #f0fdf4);
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.trust-item {
    text-align: center;
    padding: 2rem;
}

.trust-icon {
    width: 5rem;
    height: 5rem;
    background: var(--success-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: var(--white);
    font-size: 2rem;
}

.trust-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--success-green);
    margin-bottom: 0.5rem;
}

/* CTA Section */
.cta {
    padding: 6rem 0;
    background: var(--gradient);
    color: var(--white);
    text-align: center;
}

.cta h2 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.cta p {
    font-size: 1.25rem;
    margin-bottom: 3rem;
    opacity: 0.9;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    background: var(--white);
    color: var(--primary-blue);
    padding: 1.5rem 4rem;
    border-radius: 3rem;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.5rem;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.cta-button:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* Footer */
.footer {
    background: var(--text-dark);
    color: var(--text-white);
    padding: 3rem 0;
    text-align: center;
}

.footer-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.footer-logo-icon {
    width: 3rem;
    height: 3rem;
    background: var(--gradient);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .nav-container {
        padding: 0 1rem;
    }

    .nav-cta {
        padding: 0.5rem 1.5rem;
        font-size: 0.875rem;
    }

    .hero {
        padding: 6rem 0 4rem;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero .subtitle {
        font-size: 1.25rem;
    }

    .hero .description {
        font-size: 1.125rem;
    }

    .hero-cta {
        padding: 1rem 2rem;
        font-size: 1.125rem;
    }

    .container {
        padding: 0 1rem;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .solution-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .problem-grid,
    .use-cases-grid,
    .screenshots-grid,
    .trust-grid {
        grid-template-columns: 1fr;
    }

    .cta h2 {
        font-size: 2rem;
    }

    .cta-button {
        padding: 1.25rem 2.5rem;
        font-size: 1.25rem;
    }
}